Bradley, R. J. (1992). Nomads in the archaeological record: Case studies in the northern provinces of the Sudan. University of Cambridge.
Lua i Stíl Chicago (17ú heag.)Bradley, Rebecca J. Nomads in the Archaeological Record: Case Studies in the Northern Provinces of the Sudan. University of Cambridge, 1992.
Lua MLA (8ú heag.)Bradley, Rebecca J. Nomads in the Archaeological Record: Case Studies in the Northern Provinces of the Sudan. University of Cambridge, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.